Paper-fastener.



D. W. GAGE. PAPER FASTBNER.

APPLICATION FILED SEPT. 16, 1911.

Patented Mar. 2, 1915.

THE NORRIS PETERS ca. PHOTO-LITHO.. WASHING/0N, D. c,

DANIEL w. GAGE, or CAMBRIDGE,

MASSACHUSETTS, ASSIGNOR T0 J. c. HAWKINS, or NEWTON, IOWA.

IPAPER-FASTENER.

Specification of Letters Patent.

Patented Mar. 2, 1915.

Application filed September 16, 1911. Serial No. 649,622.

To all whom it may concern:

Be it known that I, DANIEL W. G GE, of Cambridge, in the county of Middlesex' and State of Massachusetts, have invented certain new and useful Improvements in Paper-Fasteners, of which the following is a specification. l j

The present invention relates to a paper fastener of the type in which a tongue is cut in two or more overlapping sheets and is drawn through a slit in the paper by means of a slitting knife having an eye, into which theotongue of paper is placed. The general principle of such apaper fastoning machine or implement is disclosed in my application for Patent Sr. No. 560,611,

filed May 11, 1910, and I do not therefore claim the principle herein. u g The particular object of the 'lIlVQIltlOIl which is here claimed is to provlde a novel and improved tucker for bending over the tongue and placing it in the eye of the slitting knife.

The purpose of the improvement constituting this invention is to make the tucker more positive in its action, stronger and therefore less liable to breakage than hitherto, and more economical in construction.

In the accompanying drawing I have illustrated a form of paper fastening implement or machine in which my invention may be embodied, it being understood that this is merely one of many forms of the machine capable of employing the invention.

Figure 1 represents a side elevation of the entire implement. Figs. 2, 3 and 45 are 1011-.

gitudinal sectional views of the operative parts of the implement showing different steps in the production of a locki'ngtongue. Fig. 5 is a sectional plan view on line 5 5 of Fig. 1. Fig. 6 represents side'and edge views of the improved tucker.

The same reference characters indicate the same parts in all the figures.

In the drawings, 1 and 2 represent a pair of aws movable together and apart by plier handles 3 and 4. One of the jaws as 1, carries a tongue-cutting knife 5, having a U shaped cutting edge and placed sothat the bend of the U is turned toward the outer end of the jaw and the sides thereof are directed away from such end, a slitting knife 6,*more distant from the end of the jaw than said tongue cutter, and a tucker 7. The other jaw carries a platen 8 and a spring plate or gripper 9. The sheets to be united by an integral tongue are shown at 10, and prior to being operated upon are inserted in the space between the platen 8 and the gripper 9. The latter is preferably of stifi strong metal attached to the jaw 2 in Such a way that its own resilience urges it toward the platen. It also serves to strip the sheets from the cutter and slitter, and in so doing is prevented from being pulled too far away from the platen 8, by a stop 11 formed on a pin or stud 12 carried by the jaw 2. Said stud also constitutes a gage limiting the extent of possible insertion of the sheets. When the jaws are separated, shoulders 13 on the plier handle 3 engage overlying tongues 14 on the spring plate '9 to hold the same separated from the platen in the position shown in Fig. 1.

The plate 9 has an opening 15 (see Fig. 5) cut in'it suficiently large to admit-the tonguecutter 5 freely. At the base of this opening the metal tongue 16 left by the cutis turned up to form a cam having a purpose presently described. The platen 8 also i has an opening of sufficient longitudinal extentv to receive the tongue cutter and the slitter, and to permit the tongue of paper which is bent back to form the fastening to bewithdrawn. The outline of the forward end of this opening is-similar' to the outline, of the tongue cutter, and its edges fit closelyoaround the tongue cutter so as to or bend of the cutter, and has a cam surface r 19 on the part which thus projects.

When the jaws of the machine are advanced toward one another upon a sheet or sheets 10 interposed between them, the spring plate or gripper 9 first bears upon the sheets. Then the tongue cutter 5 and slitter 6 pass through the sheets about at the same time, forming respectively a tongue and a slit. The tucker 7 of which the end is near the end of the tongue outter, as shown in Fig. 2, bends up the tongue 20 formed by the cutter at about right angles to the sheets. Upon further movement of the jaws together, the surface 19 of the tucker engages the edge 21 of the opening 15 in the gripper 9. This'e'dge constitutes a stop or complemental cam for the cam surface 19. The latter, owing to the resistance and the location of the edge 21, which ,is at the side of the tucker more remote from the slitter and close" to the outer side or bend of the cutter when the latter enters the opening 15, causes the tucker to swing inward toward the slitter, as shown in Fig. 3,placing"the end of the paper tongue 20 i-nthe eye 22 of theslitter 6." When the jaws separate, the slitter draws'the paper tongue back through the slitin the sheets, making'a fastening substantially the same as that illustrated in my application above mentioned. The tucker holds the paper tongue in the eve until such tongue is engaged-properly with the slitter. Afterward the tucker is withdrawn by its engagement with the base 23 of the metal tongue 16, which returns the tucker to normal position. This metal tongue serves as aguard to retain thetucker in its proper position, causing it first to bear upon the tongue out in the paper, near the base of such tongue, and bend up the tongue while the jaws are approaching one another, as shown in Fig. 2,, before it is swungbackby the cam abutment 21.

i f The improved tucker above, described t be made as a stamping from sheetmetal, and

thus be inexpensively produced. At the same time it is sufliciently strong to with stand any usage to which it is ever likely to be put, without breaking or bending, and is moreover positively actuated by the abutment face or edge 21, so that it cannot fail to bring'the paper tongue into the position shown in Fig. 3 in the eye of the slitter, however much the resistance of the paper tongue may be. r

It will be readily understood that my invention is applicable to an implement or ma chine of any character whatever which is provided with a tongue cutter and a slitter having an eye, whether the same are carried by the jaws of a hand implementsuch as that shown, or by any other moving parts.

I claim,.

1.' The combination in a paper fastening machine having a tongue cutter and a penetrating device or slitter, of a tongue folder or tucker pivotally mounted within the tongue cutter, and means for positively swinging the tucker from the tongue cutter toward the slitter after said parts have pene-.

trated the paper.

2. The combination in a paper fastening machine having a tongue cutter and a penetrating device or slitter, of a tongue folder or tuckerpivotally mounted within the tongue. cutter, and a stripper plate having a part to coact with the tongue folder to positively swing it toward the penetrating device.

3. In a paper fastening apparatus having relatively movable members, one of which carries a die and the other a tongue cutter and a penetrating device for forming an opening through which the tongue is passed to fasten the paper, a tongue tucker pivoted within and normallylying within the cutter, and means supported by the die carrying member for positively moving the tucker out from within the cutter after thecutter has penetrated the paper.

4. The combination in a paper-fastening machine having a tongue cutter'and a slitter, provided with an eye, of a tucker pivotally mounted within the tongue cutter, and cam means for. positively swinging the tucker toward the eye of the slitter.

j 5.' In a paper-fastening machine, the combination of relatively movable opposed members, a tongue cutter on one of said f members, a slitter having an eye on one of said members, said cutter and slitter being adaptedto penetrate sheets placed between relatively together, a tucker pivoted upon one of the members and having a cam surface, and an abutment on the other member arranged to engage such cam surface when the members are brought together and forcibly move the tucker about its pivot.

6. In a paper-fastening machine, the combination of relatively movable opposed members, a tongue cutter on one of sai'd'members, a slitter having an eye on one of said members, said cutter and slitter being adapted to penetrate sheets placed between the members when the members are moved relatively together, a tucker pivoted upon one of the members and having a cam surface, and an abutment on the other member arranged to engage such cam surface when the mem bers are brought together and forcibly move cutter, and having a'cam portion projecting beyond the tongue cutter on the, side opposite from the slitter, and an opposed abutment arranged with provision for relative movement toward and. from the tucker, andadapted to engage the cam portion of the same and force it toward the slitter.

8. A paper fasteningmachine comprising a tongue cutter, a slitter having an eye, a

tucker pivotally mounted with its free end in the space bounded by the tongue cutter, a cam arranged to project said tucker toward the eye of the slitter'when the latter'is in the paper, and a' cam'for returning the tucker to its former position after withdrawal from the paper.

9. A' paper-fastening machine comprising a pair of members movable relatively together and apart]; a tongue cutterhaving a U-shaped cuttingedge, a slitter having an eye, and a tucker,"a1lf carried by one of said members, and cams or abutments carried by the other member and so arranged that the tucker may pass between them when the members move together, one of said cams or ab'utme'nts being arranged to project the tucker toward the slitter eye on the movement of the members'together, and the other to withdraw it on the movement apart.

10. A paper-fastening machine comprising a pair of jaws and means for moving said jaws relatively toward and from one another, a tongue cutter carried by one of the jaws, and projecting toward the other, having a cutting edge on its end in the form of the letter U, the bend ofthe U being toward the end of the jaw and the sides thereof directed away from such end, a slitter secured to one of the jaws at a greater distance from the'end of the jawthan the cutter, a tucker pivoted tobne of the jaws and extending toward the other with its free end contained in the space'inclosed by the cutting edges of thecutter, the intermediate part of the tucker being formed as a cam and located between the cutter and the end of the jaw, a cam abutment carried by the other jaw'arranged to pass close to the outer side of the cutter when the jaws move together, and to bear on the cam surface of the tucker and force'the end of the latter toward the slitter, and a second cam abutment on the jaw opposite to that which carries the tucker arranged on the opposite side of the tucker and cutter from the first named cam abutment, and arranged to return the tucker to itsfirst position when the jaws move apart.

11. In a paper-fastening machine,atongue cutter, a slitter provided with an eye, a tucker independent of both the cutter and slitter movably mounted, and positive means for so moving the tucker as toplace a tongue formed by the cutter in the eye of the slitter.

12. In a paper, fastening machine, a tongue cutter, a slitter provided withan'eye, a tucker independent of both the cutter and slitter, pivotally mounted to swing between the cutter and slitter, and means for positively forcing the swinging end of the tucker toward the slitter to tuck a tongue of paper formed by the cutter, into the eye of the slitter.

13.1n a'paper-fastener, the combination a' c t in knife h p a /l c e t form a tongue from the paper, and having an PQrture back from that portion of its edge whichforms the-tip of 'the tongu'e, a slittingknife to slit the paper near the base of the tongue, said slitting knife being provided with an eye near its slitting edge, a tucker separate from said slitting knife for causing the latter to draw the end of the tongue throughthe slit in the paper, and having *a cam portion extending through said aperture in the cutting knife, and a complemental cam abutment arranged to engage said cam portion and force the tucker toward the'slitting knife when the knives are passed through the paper.

14L In a paper fastener, the combination of a cutting knife to form a tongnefrom the paper, a slitting knife to slit the paper near the base ofsaid tongue, said slitting knife being provided with an eye near its slitting edge, a folder separate from said cutting knife and slitting knife and normally having-its free endaway from the eye of the slitting knife, and means for positively actuating said 'folder to bend said tongue 7 through said eye, whereby the slitting lmife automatically draws the end of the tongue the free end of said folder to bend the ton ue through said eye, whereby the slitting kn ife automatically draws the end of said tongue through the slit when the knife is withdrawn. 7

16. In a paper-fastener, the combination of a pair of jaws, a cutting knife to form a tongue from the paper, a slitting knife to slit the paper near the base of the tongue, said lmivesbeing rigidly mounted in one of said jaws, a folder associated with said knives for causing the slitting knife to draw the end of the tongue through the slit in the paper when the jaws are opened, said folder being separate from said slitting knife, means for closing and opening said jaws, and means for positively moving the folder toward the slitting knife when the jaws are closed.

17. In a paper-fastener,the combination of a cutting knife to form a tongue from the paper, a slitting knife to slit the paper near the base of the tongue, said slitting knife being provided with an eye near its slitting edge, a folder separate from said cutting knife and slitting knife for causing the latter to draw the end of the tongue through the slit in the paper, and means for forcingsaid folder into folding position.

18. In a paper fasteningmachine having a tongue cutter and a slitterprovidedwith,

an eye, a movably mounted tucker independent of the cutter and slitter adapted to place the end of a tongue formed by such cutter in the eye of the slitter, and having its greatest strength and stiffness 1n the plane in which force is applied to and by it.

19. In an implement for securing together a plurality of sheets, the combination of a die-plate, a cutting member movable into said die-plate to cut a tongue from the paper, a slitting knife movable through said die-plate to slit the paper near the base of the cut tongue and having an eye for receiving the ends of said tongue, a -stripper plate,

I i froln the paper, a slitting knife arranged to slit the paper near the base of the tongue, said slitting knifebeing provided with an eye, a folder separate from said cutting knife and slitting knife and pivotally mounted to fold the paper tongue backward toward said eye, and means for swinging said folder on its pivot to fold the paper tongue backward through the eye of the slitting knife. 1

21. A paper fastening implement comprising pivotally connected arms having handle portions by which they may be moved together, a punch carried byvone of said arms, a ,die carried by the other arm, said punch and die having cooperating U shaped shearing edges, whereby to form a tongue in the material operated upon and leave such tongue attached at one edge to the material, an inclined tongue bender carried by one of said arms and contained within said punch, arranged to strike a portion of the other arm and to be thereby swung toward the paper to lay the tongue back against the same, and a piercing device projecting from one arm beside the open side of the punch, and having an eye into which the end of the tongue is passed by said tongue bender. I

22. In combination in a paper fastening device of the type described, a carrier, a punch having side walls, a needle, said punch and needle being mounted on the carrier, and a tucker pivotally mounted between the side walls. of thepunch.

23. In an implement for securing together a plurality of paper sheets, the combination of a die plate, a cutting member movable with a straight line motion into said die plate tocut a tongue from the paper, a slitting knife movable through said die plate to slitthe paper near the basejof the cut tongue and having an eye for receiving the end of saidtongue, a stripper plate, and a rigid folder independent of said cutting member and slitting knife and pivoted H therebetween,said folder being mounted to swing under said stripper plate when folding thepaper tongue into the eye of the slitting knife, and means ,for cam ning said rigid folder to swing it'nnder said stripper" ting knife being provided with an eye near its slitting edge, a substantially rigid folder separate from said cutting and slitting knives, a pivot whereon said folder is pivotally mounted between said knives, said folder being movable toward the eye of the slitting knife to fold the paper tongue backward, and camming means which comes into striking engagement with said folder near the end of the downward movement of saidcutting and slitting knives to insure positive action of said folder on the paper tongue when said folder is near the limit of its folding movement. I

25. In a paper fastener, the combination of a cutting knife adapted to form a tongue from the paper, a slitting knife arranged to slit the paper near the base of the tongue,

, i In a paper fastener, the combination said slitting knife being provided with an eye, a folder separate from said knives and pivotally mounted to fold the paper tongue backward toward said eye,a'nd a stripping plate having a part for swinging said folder on its pivot to fold the paper tongue backward through the eye ofthe slitting knife.

26. In a paper fastener, the combination of a cutting knife 'COIOIIII a tongue from the paper, a slitting knife for slitting the paper near the base ofthe tongue, said slitting knife being provided with an eye near its cutting edge, a folder separate from said knives and arranged to push the tongue of paper backward through the eye of said slit- I ting knife, a stripper mounted ,to hold the sheets of paper during the cutting operation, said stripperrhaving a part which comes into contact with said folder to complete the folding operation.

27. In a device for securing together a plurality of sheets of paper, the combination of a pair ofjaws movable one toward another, a die plate carried by one of said jaws, a cutting knife carried by the other jaw, a slitting knife movable with said cutting knife, a stripper plate for'disengaging the paper sheets from the knives after the In testimony whereof Ihave aflixed my cutging operation, and a foldcfrfpivgtTd to signature, in presence of two Witnesses.

sai upper, jaw, an arran e or 0 din v the out paper backward toward the slitting DANIEP GAGE knife, said folder having a part arranged WVitnesses: for contact with a portion of said stripper A. H. BROWN, to complete the folding movement. P. W. PEZZETTI.

Copies of this patent may be obtained for five cents. each, by addressing the Commissioner of latents Washington, D. G. r 

